cloud-hypervisor

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Currently, `fwdebug` device is unconditionally added as a part of configuring legacy devices: https://github.com/cloud-hypervisor/cloud-hypervisor/blob/d2c4ceb99a959a1c8e42d50f44be2ab765050f67/vmm/src/device_manager.rs#L1722 It logs to standard output and there's no way to disable it: https://github.com/cloud-hypervisor/cloud-hypervisor/blob/88a9f799449c04180c6b9a21d3b9c0c4b57e2bd6/devices/src/legacy/fwdebug.rs#L37 It would be...

edigaryev

[vsock]cloud-hypervisor VM crashes when we don't send \n along with the connect <portnum> message and instead close the host client

7

**[vsock]cloud-hypervisor VM crashes when we don't send \n along with the connect message and instead close the host client** *Summary* ----------------------------- For connecting to a vsock listener inside the cloudhypervisor,...

harisubash

Boot internally backs out and replays. Occasionally hits !!!! X64 Exception Type - 0D(#GP - General Protection) CPU Apic ID - 00000000 !!!!

13

**Describe the bug** Recently started hitting a new issue on boot where I see the boot operation back out and get internally rerun many times, before eventually proceeding and hitting...

maburlik

Cannot respond to other api requests while responding to an api request

7

Hi, When CLH is responding to an api request (such as live migration), it cannot respond to other api requests. I want to respond to other api requests(such as adding...

ljrcore

# Introduction Observability is a method to understand the internal state of a system through its external outputs. Monitoring, on the other hand, is an assessment of the system's health...

weltling

pci: vfio: support IOMMUFD API

3

Currently, it's possible to benefit from the advanced features offered by the IOMMUFD through a kernel compatibility layer, which can enabled using `CONFIG_IOMMUFD_VFIO_CONTAINER` kernel option, however, it lacks some features1:...

edigaryev

Enhancements for Live Migration - Cross-Host TCP Migration, Memory Optimization, and QoS Traffic Control

9

I am currently working on enhancing the live migration capabilities in Cloud Hypervisor. The proposed improvements aim to reduce downtime, optimize memory migration, and implement QoS traffic control. The main...

ljrcore

VfioMapRegion(DmaMap(IommuDmaMap(Error(17)))) when attaching more than one vfio GPU device

3

I'm using cloud-hypervisor with Kata Containers to set up GPU passthrough, and I'm able to get everything working perfectly with one GPU. Unfortunately, when I try to start a container...

jeffreymeng

vhost-user-block underperforms compared to QEMU

4

### Discussed in https://github.com/cloud-hypervisor/cloud-hypervisor/discussions/6822 Originally posted by **UdavNaSteklovate** November 3, 2024 Hello everyone! Could anyone help me understand vhost performance issues in the cloud hypervisor? I have a vhost-user-blk created...

rbradford

Doing a `sudo halt` or `reboot(LINUX_REBOOT_CMD_HALT)` or `asm("hlt")` do not trigger a `VmExit::Reset` so the guest just sits there. ```bash #!/usr/bin/env bash kernel=~/Repos/linux/vmlinux mkdir -p /tmp/hltbug cd /tmp/hltbug cargo init...

aconz2